This is an excellent idea, but it is difficult to stay up-to-date with a moving target like threads for crafts like needlepoint, counted cross stitch, etc. However, the book is thorough and the information if well thought out and concise. A great book for reference. Don't miss the amazing tips at the end with ideas for all threat types.
If you enjoy the needle arts, be sure to get a copy to keep at your side. The laminated card is perfect for shopping expeditions.